Year	thousand metric tons of CO2 equivalent
1970	-93301.76910723903
1971	159644.01531011958
1972	141963.66257374923
1973	140344.87743410867
1974	149637.80078532622
1975	147940.6300505477
1976	194661.81402998162
1977	208932.7725344601
1978	119517.42757382577
1979	223836.74667306143
1980	247596.8226780662
1981	275197.7294010499
1982	179780.581470363
1983	177993.62706118697
1984	151521.57725451043
1985	193777.33401760773
1986	173559.31228154225
1987	-50803.92245400068
1988	223076.23619228782
1989	309159.90076571587
1990	-440086.82288491924
1991	-417126.13345736417
1992	-371386.7067220213
1993	-353817.33926767175
1994	-364552.8494492776
1995	-384826.25211090007
1996	-328665.1950791487
1997	-209881.16113752194
1998	-213780.0240214474
1999	-227021.73774790915
2000	-300481.6852441437
2001	-304242.54932135396
2002	-378517.8195448526
2003	-342710.2096498616
2004	-348940.5721894525
2005	-320201.04645305965
2006	-283088.77178090933
2007	-238515.37521857215
2008	-241926.09224993075
2009	-163040.4075114139
2010	-181099.66388130258
2011	-211442.41244983693
2012	-189000.39793127886
2013	-138676.0084013944
2014	-190748.9922760731
2015	-137872.071049869
2016	-129079.13652563111